Endless-chain house-power



G. WESTINGHOUSE.

HORSE POWER.

Patented June 13, 1854.

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UNITED STATES PATENT OFFICE.

e. wnscrrnonousn, or CENTRAL RIDGE, New YORK. j

ENDLESS-CHAIN HORSE-POWER.

Specification of Letters Patent No. 11,104, dated June 13, 1854;.

To all whom it may concern:

Be it known that I, G. WESTINGHOUSE, of Central Bridge, in the county of Scho-harie and State of New York, have invented certain new and useful Improvements in Endless-Chain Horse-Powers, and that the following is a full, clear, and exact description of the principle or character which distinguishes them from all other things before known and of the usual manner ofmaking, modifying, and using the same.

My improvement consists in the mode of construction and application of the gearing and chain by which I secure a durable, eflicient, and cheap structure, and equalizes the tension of the endless chain, so that at all times is shall be equally tight, or nearly so.

The construction is as follows: (A) is the frame, of common construction, and of the dimensions of the most approved endless chain horsepowers; at either of the frame are shafts, (a) bearing upon them the carrying reels (6) thesereels are of minimum size, and are in circumference five links of the chain, which reduces them to the minimum size, while together with a peculiarity in the chain about to be named. I secure at all times an equal tension upon the chain, such as have never before been effected, and reduce the reels (6) to a size far below any ever before used practically, although I believe a reduction has been before attempted; the value of this reduction is well known to the practical operator, reducing considerably the height of the machine. These reels (6,) have an odd number of projections to receive the rods of the chain, namely five; the chain is made. with links (0,), rods or axles (cZ,), upon the ends of which are pulleys (6,), all of ordinary construction, and traversing a rail on either side of the frame above at Figure 2 and below at (70,), in the usual manner; the peculiarity of my chain, differing from all others, is the introduction of an odd link, as shown at (2,); the ordinary links (0,) are placed alternately out and in, as shown in the plan, Fig. 1, but the link (2',) has one end on the outside of the adjoining link on that end, and on the inside of the other adjoining link at the other end, as is clearly shown in the plan, the link itself being bent inward, a jog at that point; in other words, being cast of a different pattern from the others, horizontally, while it maintains its general configuration, vertically, as shown in Fig. 2, by means of this odd link (i) I am enabled to place my reels (6) as shown in Fig. 2, so that while the reels on one shaft are in the position shown at there are parts of two links occupying a relative position on the reels on the other shaft as clearly represented in the drawing, by means of which arrangement the tension of the chain is kept up more equably, and it so prevented from sagging and striking upon the lower rail (h), as in other horsepowers where this device does not exist.

The gearing is as follows: On the shaft (a) at the front end of the machine, there is a pinion (m) afliXed at each end outside of the frame; behind this shaft, and parallel with it, there is a countershaft (a), of the same length, and also bearing upon its two ends a similar pinion (m) these four pinions are ofthe same pattern, and have a fianch. (0,) on their inner faces projecting beyondtheir cogs, one of these pinions only is shown in the plan, Fig. 1; the wheel that gears into any one of these pinions is lettered (29,) it has an internal gear or cogs on the inside of the rim, pitched so as to gear into the pinion on one shaft; when the wheel is affixed to the other shaft, the arms of this wheel are joined to the outside of the rim, as is usual with internal gear wheels, and are connected with a hub which is hollow, and forms a cap which fits overthe teeth of the pinion up against the fianoh (0) above named, covering the teeth of the pinion en-' tirely, as clearly shown at (1*) in the plan; where a similar device is used to attach the band wheel (9,) two bolts pass through the fianch and face, of the cap between the cogs of the pinion, tounite the cap to the pinion; this will generally be found sufficient, but more may be used, or other devices for fastoning may be employed; by this construction it will be seen that the driving wheel (p,) can be shifted to either end of either shaft in an expeditious and permanent manner, without the laboror difficulty of keying on or off; the four pinions are necessary, to last as long as one driving wheel they are therefore required to wear out the one driving wheel, and can be changed for that purpose when wo-rn out, thus making the power more valuable.

I 'wish it understood that the mode of gearing by internal gear and pinion I have adopted is old, and has long been in use;

but the eculiar construction of the part of shaft, to either of Which the hubs of either it is my lnvention: Therefore, i the driving orband Wheels fit, and are fas- What I claim therein as new, and desire tened. to secure by Letters Patent, is a v GEORGE WESTINGHOUSE. 5 The construction of the gearing substan- Witnesses:

tially as herein set forth, having a pinion MATTHIAS PARRQTT, permanently aifixed on the ends of each CHARLES PIERSONS. 

